Details of delusional parasitosis vary among sufferers, but it is most commonly described as involving perceived parasites crawling upon or burrowing into the skin, sometimes accompanied by an actual physical sensation (known as formication). Sufferers may injure themselves in attempts to be rid of the parasites.
Perhaps one of the earliest trials in 1982, gave participants a dose of THC (1 mg/kg), followed by either a dose of valium or of CBD (0.5 mg/kg). The results suggested that CBD had a counteractive effect on THC stimulated anxiety.
The standard recommended Atarax dosage for treating anxiety in adults is 50 to 100 mg four times daily. For children over six years old, the dose is 50 to 100 mg daily in divided doses (presumably two to four doses per day). For children under six years old, the recommendation is 50 mg daily in divided doses.